1001115453 has 48 divisors (see below), whose sum is σ = 1528852416. Its totient is φ = 579156480.

The previous prime is 1001115421. The next prime is 1001115497. The reversal of 1001115453 is 3545111001.

It is a happy number.

It is not a de Polignac number, because 1001115453 - 2⁵ = 1001115421 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001115553) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2970501 + ... + 2970837.

It is an arithmetic number, because the mean of its divisors is an integer number (31851092).

Almost surely, 2^1001115453 is an apocalyptic number.

1001115453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1001115453 is a deficient number, since it is larger than the sum of its proper divisors (527736963).

1001115453 is a wasteful number, since it uses less digits than its factorization.

1001115453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1001115453 is about 31640.4085466670. The cubic root of 1001115453 is about 1000.3716795039.

Adding to 1001115453 its reverse (3545111001), we get a palindrome (4546226454).

The spelling of 1001115453 in words is "one billion, one million, one hundred fifteen thousand, four hundred fifty-three".